/* 初始化样式 */
*{
  margin: 0;
  padding: 0;
  /* 改变盒子尺寸计算方式 */
  box-sizing: border-box;
  font-size: 18px;
  
}
li{
list-style: none;
}
a{
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

input ,button{
  border: none;
/* 移除外边距 */
  outline: none;
  background-color: transparent;
}
button{
  cursor: pointer;
  background-color: transparent;
}
/* 自定义版心 */
.container{
  width: 1200px;
  margin: 0 auto;
}
.fl{
  float: left;
}
.fr{
  float: right;
}
.clearfix::after{
  content: "";
  display: block;
  clear: both;
}
